21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package jdk.nashorn.api.scripting;
27
28 import java.util.AbstractMap;
29 import java.util.ArrayList;
30 import java.util.Collection;
31 import java.util.Collections;
32 import java.util.HashSet;
33 import java.util.Iterator;
34 import java.util.List;
35 import java.util.Map;
36 import java.util.Set;
37 import java.util.concurrent.Callable;
38 import jdk.nashorn.internal.runtime.Context;
39 import jdk.nashorn.internal.runtime.ScriptFunction;
40 import jdk.nashorn.internal.runtime.ScriptObject;
41 import netscape.javascript.JSObject;
42
43 /**
44 * Mirror object that wraps a given ScriptObject instance. User can
45 * access ScriptObject via the java.util.Map interface.
46 */
47 final class ScriptObjectMirror extends JSObject implements Map<Object, Object> {
48 private final ScriptObject sobj;
49 private final ScriptObject global;
50
51 ScriptObjectMirror(final ScriptObject sobj, final ScriptObject global) {
52 this.sobj = sobj;
53 this.global = global;
54 }
55
56 @Override
57 public boolean equals(final Object other) {
58 if (other instanceof ScriptObjectMirror) {
59 return sobj.equals(((ScriptObjectMirror)other).sobj);
60 }
61
62 return false;
63 }
64
65 @Override
66 public int hashCode() {
67 return sobj.hashCode();
68 }
69
70 private <V> V inGlobal(final Callable<V> callable) {
71 final ScriptObject oldGlobal = Context.getGlobal();
72 final boolean globalChanged = (oldGlobal != global);
73 if (globalChanged) {
74 NashornScriptEngine.setNashornGlobal(global);
75 }
76 try {
77 return callable.call();
78 } catch (final RuntimeException e) {
79 throw e;
80 } catch (final Exception e) {
81 throw new AssertionError("Cannot happen", e);
82 } finally {
83 if (globalChanged) {
84 NashornScriptEngine.setNashornGlobal(oldGlobal);
85 }
86 }
87 }
88
89 // JSObject methods
|
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package jdk.nashorn.api.scripting;
27
28 import java.util.AbstractMap;
29 import java.util.ArrayList;
30 import java.util.Collection;
31 import java.util.Collections;
32 import java.util.HashSet;
33 import java.util.Iterator;
34 import java.util.List;
35 import java.util.Map;
36 import java.util.Set;
37 import java.util.concurrent.Callable;
38 import jdk.nashorn.internal.runtime.Context;
39 import jdk.nashorn.internal.runtime.ScriptFunction;
40 import jdk.nashorn.internal.runtime.ScriptObject;
41 import jdk.nashorn.internal.runtime.ScriptRuntime;
42 import netscape.javascript.JSObject;
43
44 /**
45 * Mirror object that wraps a given ScriptObject instance. User can
46 * access ScriptObject via the java.util.Map interface.
47 */
48 final class ScriptObjectMirror extends JSObject implements Map<Object, Object> {
49 private final ScriptObject sobj;
50 private final ScriptObject global;
51
52 ScriptObjectMirror(final ScriptObject sobj, final ScriptObject global) {
53 this.sobj = sobj;
54 this.global = global;
55 }
56
57 @Override
58 public boolean equals(final Object other) {
59 if (other instanceof ScriptObjectMirror) {
60 return sobj.equals(((ScriptObjectMirror)other).sobj);
61 }
62
63 return false;
64 }
65
66 @Override
67 public int hashCode() {
68 return sobj.hashCode();
69 }
70
71 @Override
72 public String toString() {
73 return inGlobal(new Callable<String>() {
74 @Override
75 public String call() {
76 return ScriptRuntime.safeToString(sobj);
77 }
78 });
79 }
80
81 private <V> V inGlobal(final Callable<V> callable) {
82 final ScriptObject oldGlobal = Context.getGlobal();
83 final boolean globalChanged = (oldGlobal != global);
84 if (globalChanged) {
85 NashornScriptEngine.setNashornGlobal(global);
86 }
87 try {
88 return callable.call();
89 } catch (final RuntimeException e) {
90 throw e;
91 } catch (final Exception e) {
92 throw new AssertionError("Cannot happen", e);
93 } finally {
94 if (globalChanged) {
95 NashornScriptEngine.setNashornGlobal(oldGlobal);
96 }
97 }
98 }
99
100 // JSObject methods
|